Leakless joint for rotating shafts



Dec. 20, 1932. H.\.E.-DE RAM LEAKIJESS JONT FOR ROTATING SHAFTS` Filed Aug. s, 1930 ng. l

(lyv- Jue-Rv" Patented Dec. 20, 1932 UNITED sl'ra'rssvP .trslsi'r oFFlcs LEAKLESS JOINT FOR BOTATING SHAFTS Appucat'ian mea August s, iaso, serial no.

-The present invention relates .toa leakless yjoint for rotating-shafts, andit is applicable to .all apparatu'suusedjwith*liquidsor, gaseous fluids injwhi'feh.- l assured aramid.` Thesen 10mm,

' in all cases w` monly used." t g The invention-consists virl-.principle in interposing between the rot'ating'- shaftand a stationary casing an elastic disk which bears s' on the one hand uponthe casing and on the other hand u 'on 'allan e ioffsaid shaft, by

means of pac ling mein erswhich are subjected to'an adjustable 'pressure-. f

l The following description withreference tothe accompanying drawing relates to two embodiments ofthe invention.

Fig. I is an axial section of an apparatus in conformity to the invention, comprising a single elastic disk.

Fig. 2 is a like section of an apparatus according'to the invention comprising two elastic disks.

'A Referring to Fig. l, the end of the-shaft 1 isA contained in a casing 2, and near this'end is a flange 3 upon' which an elastic disk 4 'is caused to bear, through the medium of a packing ring 5 of suitable material. Said 30 elastic disk also bears upon ailage 6 of casing 2, by means of a packing ring 7 of adequate material. The pressurerequired to apply the disk 4 upon the packing rings 5 and 7 is obtained by turning a stop screw 8 b which said casing is axially displaced wit reference to the shaft. Said elastic disk may consist of sheet steel or of any other suitable material, and it can be applied directly upon the shaft or the casing without the use of packing,

In the construction shown in Fig. 2, the device comprises two elastic disks 9 'and 10 .which are applied on the one hand against the flange 6 ofthe casing 2 which is held between the two disks by means of packingv rings 11, and on the, other hand between the washers 124-13 situated on the respective sides of the two rings, and between said disks land washers are suitable packing members 50 14'. The required pressure 1s obtained by the jating.

be employedtefadvantage iclrbox is com ^leakljessj,conditions are to bel tir-:oscillating part.. 1

y first place a stamped 473,989, and m France september 3,1929.

use of a nut 15 mountedagainst the washer 13 and vs crewe L. uring the opera, @mifhefemetheaem 1 which is then` flattened `by Y theV pressure exerhereinabove described y as perfectly.

d upon-a threaded-parmi .ther l wninfFig.

c1sed ori/the end-of the shaft by the screw disk isuflat in theffirstp laf' position anap- 'j which is shown .Y

. and represented the fr accompanying drawingare not of avlinita'- i tive nature, withoutdeparting from'gthe'spirit of the invention. In particular, it should be y'Temarked that in these two constructions, the elasticdisks are free, but they'm'ay evidently be attached, either upon their buter periphery or at the shaft, or they may'even form part of the shaft or of the casing.

I claim: f'

1. A joint for the purpose specified comprising a casing having a closed end and providedy at the other end with an. annular flange defining an opening, a shaft extending through the opening, a flexible disk under elastic tension on the shaft, packingmel'nbers interposed, respectively, between the flexible disk and the casing and the shaft. the pressure imparted to the packing members being due to the direct application of the disk under tension on the packing members, and

' means carried bythe casing engaged with the and may be 'suitably modified i 3. A 'oint a's claimed in claim 1, in which the flexible disk under tension is fixed to the casing, the packing members` beingv inter# posed only between the disk and the shaft.

l specifi 4. A. 'joint for the purpose specified comprising a casing having upon one end an annular flange defining an opening, a set screw carried bythe other end of the casing, a shaft extending into the opening, a flexible disk under elastic tension mounted'on the shaft, packing members inter thedisk and flange and shaft pressure of said packing members being oni due to the mere direct ap under tension on -the pac ng members, said screw being engaged 'with the shaft and operable to movethe casing axially with respect thereto,

5. A joint for the purpose specified comprising a casinghaving a closed end and provided at the other end with an annular flange defining an opening, a shaft` extending through the` opening, two flexible disks under y elastic tension on the shaft on opposite` sides of the flange, washers on 'the shaft o n both sides of the disks, packing members interposed between the disks and flange and washand means for adjusting'one ers and disks, of the washers with respect to the other.

In testimony whereof he has lsigned this cat-ion. GEORGES HENRI ERNEST DE RAM.y

posed between p and disk, the

lication of the dis v as and for the purpose set forth. 

